If you are considering building an ADU (accessory dwelling unit), there are several important things to consider before you break ground.

1. Research local regulations and requirements. ADU regulations and requirements can vary depending on the location of the property, so it is important to research and understand the specific regulations and requirements that apply to your property. This may include obtaining the necessary permits, meeting certain zoning and building code requirements, and following any other applicable regulations.

2. Determine the design of the ADU. The size and design of the ADU will depend on factors such as the size of the property, the intended use of the unit, and any local regulations or requirements. It may be helpful to work with a qualified professional, such as an architect or designer, to develop a plan that meets your needs and complies with local regulations. Alternatively, starting with a pre-designed ADU Plan can be an option to save time and money.

3. Consider the cost of construction and financing options. Building an ADU can be a significant investment, so it is important to consider the costs involved and determine how you will finance the construction. This may include securing a loan, using savings, or seeking financial assistance from a government program.

4. Choose a contractor. Once you have an ADU plan in place, you will need to choose a contractor to handle the construction of the ADU. It is important to research and compare contractors to ensure that you choose one that is qualified, experienced, and reputable.

5. Consider the ongoing maintenance and operating costs of the ADU. Once the ADU is built, you will need to consider the ongoing maintenance and operating costs of the unit. This may include costs such as utilities, property taxes, insurance, and repairs. It is wise to plan for this in advance and work with your designer or builder to select low-maintenance long-lasting materials and systems.

6. Set the timeline. Build and ADU takes a long time - months or even years depending on the size, complexity and location. Work with your general contractor to set a construction schedule and plan for any complexities and risks. Also plan some contingency as nothing works out exactly to plan.

7. Involve your designer throughout construction. Drawings are a guide for builders to follow but can never have every detail and situation covered. Having your designer involved in the construction process can help avoid errors, answer questions, work through challenges, and ultimately save money. It is always cheaper to make revisions on paper before things are built. When contractor’s have questions it is best to consult with your design team to help solve the problem. The design fees during construction will be much less than fixing things that were built incorrectly.

8. Hire a professional. Experienced designers and builders are more than worth their fees. They know how to get things done to a high quality and can guide you through the hundreds of decisions along the way. They also have relationships with other consultants that will be needed throughout the process. Although some people may be successful DIYing an ADU project, considering the amount of work it will take and time it will absorb, it is a great investment to hire professionals who can avoid mistakes, and keep the project on budget and on schedule.

Overall, building an ADU can be a rewarding investment, but it is important to carefully consider all of the factors involved before breaking ground. By researching local regulations, determining the size and design of the ADU, considering the costs involved, and planning for ongoing maintenance and operating costs, and hiring an expert team, you can ensure that your ADU project is successful.